What does VA rating of a wall receptacle means ? Just started using Revit for Electrical Design (120V/208V) and came across wall receptacle rated as 180 VA. Just trying to wrap my head around that 180VA rating as I understand the maximum load that can be connected to a receptacle would be 120*15=1800 VA.. So what does 180 VA means ?

  • 7
    \$\begingroup\$ Was it in a bathroom? It most probably has an 80 VA transformer in series, which limits your output. \$\endgroup\$ – winny Jul 8 '17 at 6:04
  • \$\begingroup\$ Hotels in 220-240 countries sometimes have a low-power outlet in the bathroom so that North American tourists can plug in their 120V electric shavers and toothbrushes and whatnot. \$\endgroup\$ – mkeith Jul 8 '17 at 16:34
  • 1
    \$\begingroup\$ It was rated 180 VA, I had a typo in the question which I have corrected. On doing a lil bit digging I was able to find the solution. It is described as General-Purpose Receptacle Loads.tpub.com/celec/34.htm \$\endgroup\$ – user2966713 Jul 9 '17 at 6:46
  • 1
    \$\begingroup\$ Possible duplicate of What is the practical difference between watts and VA (volt-amps)? \$\endgroup\$ – Dmitry Grigoryev Jul 18 '19 at 7:00

The link below explains the default rated (180VA) receptacles.


All receptacles used in industrial areas have to be computed at 180 VA per outlet. One exception to this rule involves the use of multioutlet assemblies (prefabricated, wall-mounted outlet strips). The load for outlet strips is to be computed at 180 VA for every 5 feet of assembly. If the outlet strip will be heavily loaded with portable tools, such as bench grinders, drill presses, soldering irons, and so forth, a load of 180 VA per foot is to be computed.

| improve this answer | |
  • 4
    \$\begingroup\$ Very little in the way of explanation at that link. Also, answers which are just a link often go out of date if the link expires somehow (which happens fairly often). \$\endgroup\$ – mkeith Jul 14 '17 at 15:45

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.